EP2939511B1 - Single grain meter and single grain seeder - Google Patents

Single grain meter and single grain seeder Download PDF

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Publication number
EP2939511B1
EP2939511B1 EP14166850.9A EP14166850A EP2939511B1 EP 2939511 B1 EP2939511 B1 EP 2939511B1 EP 14166850 A EP14166850 A EP 14166850A EP 2939511 B1 EP2939511 B1 EP 2939511B1
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EP
European Patent Office
Prior art keywords
seeding
seed
agitator shaft
shaft
heart
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14166850.9A
Other languages
German (de)
French (fr)
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EP2939511A1 (en
Inventor
Ferdinand Schumacher
Bernhard Scheideler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kverneland AS
Original Assignee
Kverneland AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to PL14166850T priority Critical patent/PL2939511T3/en
Application filed by Kverneland AS filed Critical Kverneland AS
Priority to ES14166850.9T priority patent/ES2598962T3/en
Priority to HUE14166850A priority patent/HUE029148T2/en
Priority to EP14166850.9A priority patent/EP2939511B1/en
Priority to DK14166850.9T priority patent/DK2939511T3/en
Priority to CN201580003185.4A priority patent/CN105828597B/en
Priority to PCT/EP2015/051846 priority patent/WO2015165598A1/en
Priority to CA2933012A priority patent/CA2933012C/en
Priority to BR112016011967-3A priority patent/BR112016011967B1/en
Priority to US15/035,650 priority patent/US9901022B2/en
Publication of EP2939511A1 publication Critical patent/EP2939511A1/en
Application granted granted Critical
Publication of EP2939511B1 publication Critical patent/EP2939511B1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/04—Single-grain seeders with or without suction devices
    • A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
    • A01C7/044—Pneumatic seed wheels
    • A01C7/046—Pneumatic seed wheels with perforated seeding discs
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed
    • A01C7/201—Mounting of the seeding tools
    • A01C7/205—Mounting of the seeding tools comprising pressure regulation means

Definitions

  • the invention relates to a presety of diseases and conditions in which a presety of diseases and conditions in which a presety of diseases and conditions in which a presety of diseases and conditions in which a presety of diseases and conditions in which a presety of diseases and conditions in which a presety of diseases and conditions in which a presety of diseases and conditions in which a presety of diseases and conditions in which a presety of diseases and a seeder according to claim 7.
  • Seed hearts for precision seed drills are used for the defined spreading of seeds, whereby the seed usually has no defined dimensions.
  • seed hearts should be used as universally as possible for a variety of seed species of different sizes and geometric shapes. Since seed is partly very expensive, as little seed as possible should be produced and if possible no seeds should be destroyed.
  • the application at a defined distance and in each case of a single seed grain plays an important role, so that the plants can develop optimally until harvest.
  • Object of the present invention is therefore to provide a sheherz, which is versatile and reliable, so works as trouble-free as possible over a long period of time.
  • the basic idea of the present invention is to arrange a stirrer shaft in a receiving section for receiving the seed on the seed disc or in the region of an inlet of the seed into the seed heart and to form the stirrer shaft in a modular exchangeable manner.
  • Modular interchangeable means in particular that the seed must not be dismantled to replace the stirrer shaft.
  • Seed hearts are usually constructed in two parts and have a variety of attachments, which must be used consuming in a disassembly and subsequent assembly.
  • Modular interchangeable means, in particular, that the sowing heart does not have to be removed from the precision seed drill to replace the stirrer shaft. This is particularly advantageous because a seeder usually has a variety of sheherzen, namely at least one seed per shenism.
  • stirrer shafts can be used for different seeds, which in particular have different outer contours, preferably different stirrer knobs on the circumference.
  • the agitator shaft can be plugged onto a drive shaft, in particular with a drive of the seed disc, preferably via a bevel gear mechanism.
  • a drive shaft in particular with a drive of the seed disc, preferably via a bevel gear mechanism.
  • the drive shaft rotatably with a double ball bearing in a, in particular in a half of the poleherzes molded, hollow cylinder.
  • the agitator shaft can be mounted at least predominantly, in particular exclusively, at its drive-side end, so that the modular exchange, in particular from the opposite end of the agitator shaft, is simplified.
  • the drive shaft in particular has only one degree of freedom in the direction of rotation, preferably by positive engagement in the hollow cylinder.
  • the agitator shaft is exchangeable through a, preferably opposite to the hollow cylinder, the housing opening of the seed ore.
  • the stirring shaft in particular by a linear Aufsteckterrorism, in a simple manner interchangeable.
  • the agitator shaft has a head which is shaped congruently to an inner wall of a housing opening, in particular a circular-cylindrical one. Due to the congruence of shape of the head of the seed having receiving portion of sheherzes can be closed.
  • the head is arranged flush with an inner wall of the seed ore on a shoulder directed toward the drive side of the stirring shaft, in particular in the region of the receiving section.
  • the head has a play relative to the inner wall of the housing opening, and is in particular rotatable with respect to this.
  • the game is preferably such that no seed is trapped between the inner wall of the housing opening and the head.
  • the present invention relates to a seeder with one or more above-described stirrer shafts.
  • FIGS. 1a and 1b a sowing unit 1 of a precision seed drill according to the invention is shown, which is attached via an arm 2 on the frame of the precision seed drill. Accordingly, the direction of travel when operating the seeder in the direction indicated by the arrow F direction.
  • a setup 3 On the arm 2, which allows a pivoting movement, preferably as a vertical movement by forming the arm 2 as a parallelogram, are a setherz 3, a arranged above the workingherzes 3 tank 4, arranged below the sheherzes 3 clutch 5 and two in the direction of travel before F and behind the sheherz 3 arranged, with respect to the sheherz 3 swivel wheels 6 attached.
  • the tank 4 is over a Lid 4d closable and filled with seed, which in turn is guided laterally into the sheherz 3 via a channel 4k.
  • the seed is singled in sheherz 3 and placed over the coulter 5 in a by a share tip 7 of the coulter 5 open furrow in the soil soil.
  • the sheherz 3 consists of a first half 3.1 and a second half 3.2, which define a sheherzgetude and a working space 8 therein.
  • the working space 8 is divided by a seeding disc 9 into a negative pressure side and a seed side.
  • 9 seeding holes 15 are distributed on the circumference of the seeding disc (seedhole circle) through which the pressure side and the seed side are connected. Otherwise, the pressure side and the seed side are sealed off from each other by the seed disc 9 and in particular by corresponding seals.
  • the seed from the tank 4 arrives at the seed disc 9 via a feed 30 in a receiving section 31 for receiving the seed.
  • a negative pressure which is generated by a negative pressure region of the first half 3.1.
  • a fan motor Connected to the negative pressure area is a fan motor, which can be controlled by a saw core control device.
  • the seeding holes 15 have suitable diameters which are in particular in the range from 0.5 mm to 3 mm.
  • each sowing hole 15 picks up a single seed grain, which does not always work 100% in practice, in particular because of the different severity of the seeds of each seed.
  • a seed hole 15 no seed or even picking up multiple seeds. This leads to the corresponding sowing point in the field soil, which either no plant originates or for example two plants, which are not sufficiently supplied with nutrients and therefore remain underdeveloped.
  • An agitating shaft 18, 18 'having stirring knobs 19, 19' for enhancing the movement of the seed in the receiving section 31 is preferably arranged in the region of the inlet 30 and / or on the beginning of the receiving section 31 in the direction of rotation R.
  • the region of the inlet 30 is provided in particular with a fill level monitoring (not shown) in order to counteract a strong conveying effect of the agitator shaft 18, 18 '. If the filling level monitoring gives a corresponding signal that there is no or too little seed in the region of the inlet 30, the rotational speed of the agitator shaft 18, 18 'is reduced or the rotation of the agitator shaft 18, 18' is stopped.
  • a scraper (not shown) for stripping excess seed from the sockets 15 is preferably disposed in the direction of rotation R between the agitator shaft 18, 18 'and a seed heart monitor (not shown), in particular closer to the agitator shaft 18, 18' than to the seed heart monitor.
  • FIG. 2a It can be seen that according to the invention stirrer shafts 18, 18 'of different types in the poleherz 3 are used.
  • the embodiment of the lower agitator shaft 18 has at its periphery 33 stirring knobs 19, which in the form and dimensions of stirring knobs 19 'of in FIG. 2a Distinguish above stirring shaft 18 '.
  • the four on the circumference 33 of the Stirring shaft 18 'arranged stirring knobs 19' have a wing shape.
  • the stirring shafts 18, 18 ' are preferably identical.
  • both agitator shafts 18, 18 ' have a worm 26 on a drive-side end.
  • the worm 26 ensures upon rotation of the agitator shaft 18, 18 'for a promotion of the seed in the direction of Rhaknoppen 19, 19'.
  • the agitator shaft 18, 18 ' is at least partially, preferably predominantly, formed as a hollow body with a receiving opening 27 for receiving a drive shaft 12.
  • the agitator shaft 18, 18 ' is axially aufsteckbar with its receiving opening 27 on the drive shaft 12 and has only one degree of freedom in the insertion direction.
  • the stirring shaft 18, 18 ' is thus rotatably connected to the drive shaft 12.
  • the stirring shaft 18, 18 At a surrounding the receiving opening 27 stop side 28, the stirring shaft 18, 18 'abuts against a stop ring 32 of a hollow cylinder for receiving a double ball bearing 13 of the drive shaft 12, in particular sealingly. This prevents that seed from the receiving portion 31 enters a drive space of a drive 10 for driving the seed disc 9.
  • the drive shaft 12 extends in particular radially parallel to the seed disc 9 and / or orthogonal to a drive shaft of the drive 10 of the seeding disc 9.
  • the drive shaft 12 is coupled in particular via a bevel gear 11 to the drive 10 so that during operation of the seed disc 9 so during rotation of scale 9, also the stirring shaft 18, 18 'rotates.
  • a separate drive for, in particular separately controllable and / or controllable drive of the drive shaft 12 is provided.
  • this has a head 20 with a circular cylindrical circumference, which is formed congruent to a housing opening 16 of the poleherzes 3.
  • the head 20 has, in particular, a play relative to an inner wall 17 of the housing opening 16, so that the agitator shaft 18, 18 'can be removed through the housing opening 16 in an insertion direction extending axially with respect to the drive shaft 12.
  • the housing opening 16 is closed by a lid 22, in particular sealing.
  • the cover 22 fixes the agitator shaft 18, 18 'on the drive shaft 12 by means of at least one, in particular annular, projection 29.
  • the projection 29 is in the mounted state at one, in particular tangential to the seed disc 9 and / or radially to the drive shaft 12 extending end face 25th the stirring shaft 18, 18 'on.
  • the cover 22 thus simultaneously stabilizes the rotational movement of the free end of the agitator shaft 18, 18 '.
  • the lid 22 also has a viewing window 23, which closes a viewing opening 24 of the sheherzes 3. Through the viewing opening 24 and the viewing window 23 gives insight into the operation of the sheherzes 3 inside the sheherzes. 3

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Sowing (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Description

Die Erfindung betrifft ein Säherz gemäß Patentanspruch 1 und eine Einzelkornsämaschine gemäß Patentanspruch 7.The invention relates to a Säherz according to claim 1 and a seeder according to claim 7.

Säherzen für Einzelkornsämaschinen dienen zur definierten Ausbringung von Saatgut, wobei das Saatgut In der Regel keine definierten Abmessungen aufweist. Darüber hinaus sollen Säherzen möglichst universell für eine Vielzahl von Saatgutarten unterschiedlicher Größe und geometrischer Form einsetzbar sein. Da Saatgut teils sehr teuer ist, soll möglichst wenig Saatgutausschuss produziert werden und möglichst kein Saatgut zerstört werden. Eine große Rolle spielt auch die Ausbringung in einem definierten Abstand und jeweils eines einzelnen Saatgutkorns, damit die Pflanzen sich bis zur Ernte optimal entwickeln können.Seed hearts for precision seed drills are used for the defined spreading of seeds, whereby the seed usually has no defined dimensions. In addition, seed hearts should be used as universally as possible for a variety of seed species of different sizes and geometric shapes. Since seed is partly very expensive, as little seed as possible should be produced and if possible no seeds should be destroyed. The application at a defined distance and in each case of a single seed grain plays an important role, so that the plants can develop optimally until harvest.

Bei der zuverlässigen Vereinzelung des Saatguts auf Sälöchern einer rotierenden Säscheibe kommt es außerdem darauf an, dass ein langfristiger und störungsfreier Einsatz gewährleistet ist. Probleme bereiten nicht nur die oben genannten unterschiedlichen Abmessungen, sondern auch Staub und etwaige Verschmutzungen oder Fremdkörper, die bei gattungsgemäßen Säherzen häufig für Funktionsstörungen verantwortlich zeichnen, insbesondere bei längerem Betrieb. Die EP 0 046 709 A1 offenbart ein Säherz gemäß dem Oberbegriff des Anspruchs 1.In addition, the reliable separation of the seed on the perforated holes of a rotating sowing disc requires long-term and trouble-free use. Problems not only cause the above-mentioned different dimensions, but also dust and any dirt or foreign bodies, which are often responsible for malfunctioning in generic Säherzen, especially during prolonged operation. The EP 0 046 709 A1 discloses a seed heart according to the preamble of claim 1.

Aufgabe der vorliegenden Erfindung ist es daher, ein Säherz anzugeben, das vielseitig einsetzbar ist und zuverlässig, also möglichst störungsfrei über einen möglichst langen Zeitraum arbeitet.Object of the present invention is therefore to provide a Säherz, which is versatile and reliable, so works as trouble-free as possible over a long period of time.

Diese Aufgabe wird mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved with the features of claim 1.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous developments of the invention are specified in the subclaims.

Grundidee der vorliegenden Erfindung ist es, eine Rührwelle in einem Aufnahmeabschnitt zur Aufnahme des Saatguts an der Säscheibe beziehungsweise im Bereich eines Zulaufs des Saatguts in das Säherz anzuordnen und die Rührwelle modular austauschbar auszubilden. Modular austauschbar heißt insbesondere, dass das Säherz nicht demontiert werden muss, um die Rührwelle auszutauschen. Säherzen sind meist zweiteilig aufgebaut und weisen eine Vielzahl von Anbauten auf, die bei einer Demontage und anschließender Montage aufwendig eingesetzt werden müssen. Modular austauschbar heißt insbesondere, dass das Säherz zum Auswechseln der Rührwelle nicht aus der Einzelkornsämaschine ausgebaut werden muss. Dies ist insbesondere deshalb von Vorteil, weil eine Einzelkornsämaschine meist eine Vielzahl von Säherzen aufweist, nämlich mindestens je ein Säherz pro Säreihe.The basic idea of the present invention is to arrange a stirrer shaft in a receiving section for receiving the seed on the seed disc or in the region of an inlet of the seed into the seed heart and to form the stirrer shaft in a modular exchangeable manner. Modular interchangeable means in particular that the seed must not be dismantled to replace the stirrer shaft. Seed hearts are usually constructed in two parts and have a variety of attachments, which must be used consuming in a disassembly and subsequent assembly. Modular interchangeable means, in particular, that the sowing heart does not have to be removed from the precision seed drill to replace the stirrer shaft. This is particularly advantageous because a seeder usually has a variety of Säherzen, namely at least one seed per Säreihe.

Durch den modularen Aufbau ist es erfindungsgemäß möglich, die Rührwelle bei Verschleiß einfach auszutauschen, ohne eine Aufwendige Demontage des Säherzes von der Einzelkornsämaschine und/oder eine Zerlegung des Säherzes durchführen zu müssen. Außerdem können für unterschiedliche Saatgüter verschiedene Rührwellen eingesetzt werden, die insbesondere verschiedene Außenkonturen, vorzugsweise verschiedene Rührnoppen am Umfang, aufweisen.Due to the modular design, it is possible according to the invention to easily replace the agitator shaft in the event of wear, without having to carry out a costly disassembly of the seed ore from the precision seed drill and / or a disassembly of the seed ore. In addition, different stirrer shafts can be used for different seeds, which in particular have different outer contours, preferably different stirrer knobs on the circumference.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, dass die Rührwelle auf eine, insbesondere mit einem Antrieb der Säscheibe, vorzugsweise über ein Kegelradgetriebe, gekoppelte, Antriebswelle aufsteckbar ist. Durch die Kopplung mit der Antriebswelle wird der bauliche Aufwand für das Säherz verringert, da auf einen eigenen Antrieb für die Rührwelle verzichtet werden kann.According to a preferred embodiment of the invention, it is provided that the agitator shaft can be plugged onto a drive shaft, in particular with a drive of the seed disc, preferably via a bevel gear mechanism. By coupling with the drive shaft, the structural complexity of the Säherz is reduced because it can be dispensed with a separate drive for the agitator shaft.

In Weiterbildung ist es erfindungsgemäß denkbar, die Antriebswelle mit einem Doppelkugellager in einem, insbesondere in einer Gehäusehälfte des Säherzes eingeformten, Hohlzylinder drehbar anzuordnen. Auf diese Weise kann die Rührwelle zumindest überwiegend, insbesondere ausschließlich, an ihrem antriebsseitigen Ende gelagert werden, sodass der modulare Austausch, insbesondere von dem gegenüberliegenden Ende der Rührwelle her, vereinfacht wird.In a further development, it is conceivable according to the invention to arrange the drive shaft rotatably with a double ball bearing in a, in particular in a half of the Säherzes molded, hollow cylinder. In this way, the agitator shaft can be mounted at least predominantly, in particular exclusively, at its drive-side end, so that the modular exchange, in particular from the opposite end of the agitator shaft, is simplified.

Die Antriebswelle besitzt insbesondere ausschließlich einen Freiheitsgrad in Rotationsrichtung, vorzugsweise durch formschlüssigen Einsatz in den Hohlzylinder.The drive shaft in particular has only one degree of freedom in the direction of rotation, preferably by positive engagement in the hollow cylinder.

Gemäß einer weiteren vorteilhaften Ausführungsform der vorliegenden Erfindung ist vorgesehen, dass die Rührwelle durch eine, insbesondere gegenüberliegend zum Hohlzylinder angeordnete, Gehäuseöffnung des Säherzes austauschbar ist. Auf diese Weise ist die Rührwelle, insbesondere durch eine lineare Aufsteckbewegung, auf einfache Art und Weise austauschbar.According to a further advantageous embodiment of the present invention, it is provided that the agitator shaft is exchangeable through a, preferably opposite to the hollow cylinder, the housing opening of the seed ore. In this way, the stirring shaft, in particular by a linear Aufsteckbewegung, in a simple manner interchangeable.

Mit Vorteil ist die Rührwelle gemäß einer weiteren Ausführungsform der Erfindung mittels eines, insbesondere die Gehäuseöffnung, vorzugsweise dichtend, verschließenden, Deckels drehbar fixierbar. Hierdurch wird ein einfacher Austausch ermöglicht, wobei der Deckel insbesondere gleichzeitig mehrere Funktionen erfüllen kann, nämlich:

  1. a) Verschließen der Gehäuseöffnung, insbesondere dichtend gegenüber der Umgebung und/oder
  2. b) Halterung der Rührwelle in einer Steckrichtung der Rührwelle beziehungsweise in Axialrichtung der Antriebswelle und/oder
  3. c) Führung einer Stirnseite eines Kopfes der Rührwelle und dadurch Stabilisierung des, insbesondere freien, Endes der Rührwelle, das von der Antriebsseite entfernt ist.
Advantageously, the agitator shaft according to a further embodiment of the invention by means of a, in particular the housing opening, preferably sealing, closing lid rotatably fixed. As a result, a simple exchange is made possible, wherein the lid can fulfill several functions in particular at the same time, namely:
  1. a) closing the housing opening, in particular sealing against the environment and / or
  2. b) mounting the agitator shaft in a direction of insertion of the agitator shaft or in the axial direction of the drive shaft and / or
  3. c) guiding an end face of a head of the stirring shaft and thereby stabilizing the, in particular free, end of the stirring shaft, which is remote from the drive side.

Gemäß einem weiteren Erfindungsaspekt weist die Rührwelle einen formkongruent zu einer Innenwand einer Gehäuseöffnung ausgestalteten, insbesondere kreiszylinderförmigen, Kopf auf. Durch die Formkongruenz des Kopfes kann der das Saatgut aufweisende Aufnahmeabschnitt des Säherzes verschlossen werden. Der Kopf ist insbesondere an einer zur Antriebsseite der Rührwelle gerichteten Schulter bündig zu einer Innenwand des Säherzes angeordnet, insbesondere im Bereich des Aufnahmeabschnitts. Der Kopf weist insbesondere ein Spiel gegenüber der Innenwand der Gehäuseöffnung auf, und ist insbesondere gegenüber dieser rotierbar. Das Spiel ist vorzugsweise so bemessen, dass kein Saatgut zwischen der Innenwand der Gehäuseöffnung und dem Kopf eingeklemmt wird.According to a further aspect of the invention, the agitator shaft has a head which is shaped congruently to an inner wall of a housing opening, in particular a circular-cylindrical one. Due to the congruence of shape of the head of the seed having receiving portion of Säherzes can be closed. In particular, the head is arranged flush with an inner wall of the seed ore on a shoulder directed toward the drive side of the stirring shaft, in particular in the region of the receiving section. In particular, the head has a play relative to the inner wall of the housing opening, and is in particular rotatable with respect to this. The game is preferably such that no seed is trapped between the inner wall of the housing opening and the head.

Hierdurch wird die Montage der Rührwelle auf einfache Art und Weise ermöglicht, bei gleichzeitig zuverlässigem Betrieb der Rührwelle über einen langen Zeitraum.As a result, the assembly of the stirring shaft is made possible in a simple manner, with simultaneous reliable operation of the stirring shaft over a long period.

Weiterhin betrifft die vorliegende Erfindung eine Einzelkornsämaschine mit einer oder mehreren vorbeschriebenen Rührwellen.Furthermore, the present invention relates to a seeder with one or more above-described stirrer shafts.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen. Diese zeigen in:

Figur 1a und 1b
perspektivische Ansichten einer Ausführungsform eines Einzelkornsäaggregats einer gattungsgemäßen Einzelkornsämaschine mit einem Säherz in Fahrtrichtung von schräg hinten (Figur 1a) und von schräg vorne (Figur 1b),
Figur 2a
eine perspektivische Ansicht des Säherzes der Ausführungsform gemäß Figur 1 mit einem Ausbruch zur Darstellung einer Rührwelle und einer teilweise dargestellten Säscheibe mit Sälöchern,
Figur 2b
eine Seitenansicht des Säherzes gemäß Figur 2a mit geöffnetem Säherz und
Figur 2c
eine geschnittene Aufsicht des Säherzes gemäß Figur 2a.
Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings. These show in:
FIGS. 1a and 1b
perspective views of an embodiment of a Einzelkornsäaggregats a generic seeder with a seed in the direction of travel from obliquely behind ( FIG. 1a ) and diagonally from the front ( FIG. 1b )
FIG. 2a
a perspective view of the Säherzes the embodiment according to FIG. 1 with an outbreak for the representation of a stirrer shaft and a partially shown seeding disc with sockets,
FIG. 2b
a side view of the Säherzes according to FIG. 2a with open seed and
Figure 2c
a sectional view of the Säherzes according to FIG. 2a ,

In den Figuren sind gleiche Bauteile und Bauteile mit der gleichen Funktion mit den gleichen Bezugszeichen gekennzeichnet.In the figures, the same components and components with the same function with the same reference numerals.

In den Figuren 1a und 1b ist ein Säaggregat 1 einer erfindungsgemäßen Einzelkornsämaschine dargestellt, das über einen Arm 2 am Rahmen der Einzelkornsämaschine befestigt ist. Dementsprechend ist die Fahrtrichtung bei Betrieb der Einzelkornsämaschine in der durch den Pfeil F angegebenen Richtung.In the FIGS. 1a and 1b a sowing unit 1 of a precision seed drill according to the invention is shown, which is attached via an arm 2 on the frame of the precision seed drill. Accordingly, the direction of travel when operating the seeder in the direction indicated by the arrow F direction.

An dem Arm 2, der eine Schwenkbewegung, vorzugsweise als Vertikalbewegung durch Ausbildung des Arms 2 als Parallelogrammarm, zulässt, sind ein Säherz 3, ein oberhalb des Säherzes 3 angeordneter Tank 4, ein unterhalb des Säherzes 3 angeordnetes Säschar 5 sowie zwei in Fahrtrichtung F vor und hinter dem Säherz 3 angeordnete, gegenüber dem Säherz 3 schwenkbare Laufräder 6 angebracht. Der Tank 4 ist über einen Deckel 4d verschließbar und mit Saatgut befüllbar, das wiederum über einen Kanal 4k seitlich in das Säherz 3 geführt wird.On the arm 2, which allows a pivoting movement, preferably as a vertical movement by forming the arm 2 as a parallelogram, are a Säherz 3, a arranged above the Säherzes 3 tank 4, arranged below the Säherzes 3 Säschar 5 and two in the direction of travel before F and behind the Säherz 3 arranged, with respect to the Säherz 3 swivel wheels 6 attached. The tank 4 is over a Lid 4d closable and filled with seed, which in turn is guided laterally into the Säherz 3 via a channel 4k.

Das Saatgut wird im Säherz 3 vereinzelt und über das Säschar 5 in eine durch eine Scharspitze 7 des Säschars 5 geöffnete Furche im Ackerboden abgelegt.The seed is singled in Säherz 3 and placed over the coulter 5 in a by a share tip 7 of the coulter 5 open furrow in the soil soil.

Das Säherz 3 besteht aus einer ersten Hälfte 3.1 und einer zweiten Hälfte 3.2, die ein Säherzgehäuse und einen darin befindlichen Arbeitsraum 8 definieren. Der Arbeitsraum 8 wird durch eine Säscheibe 9 in eine Unterdruckseite und eine Saatgutseite unterteilt.The Säherz 3 consists of a first half 3.1 and a second half 3.2, which define a Säherzgehäuse and a working space 8 therein. The working space 8 is divided by a seeding disc 9 into a negative pressure side and a seed side.

Konzentrisch zur kreisförmigen Säscheibe 9 sind am Umfang der Säscheibe 9 Sälöcher 15 verteilt (Sälochkreis), durch welche die Druckseite und die Saatgutseite verbunden sind. Ansonsten sind die Druckseite und die Saatgutseite durch die Säscheibe 9 und insbesondere durch entsprechende Dichtungen voneinander abgedichtet.Concentric with the circular seeding disc 9, 9 seeding holes 15 are distributed on the circumference of the seeding disc (seedhole circle) through which the pressure side and the seed side are connected. Otherwise, the pressure side and the seed side are sealed off from each other by the seed disc 9 and in particular by corresponding seals.

In der Hälfte 3.2 kommt das Saatgut von dem Tank 4 über einen Zulauf 30 in einem Aufnahmeabschnitt 31 zur Aufnahme des Saatguts an der Säscheibe 9 an. Zumindest im Aufnahmeabschnitt 31 liegt an den Sälöchern 15 ein Unterdruck an, der durch einen Unterdruckbereich der ersten Hälfte 3.1 erzeugt wird. An den Unterdruckbereich ist ein Gebläsemotor angeschlossen, der von einer Säherzsteuerungseinrichtung steuerbar ist.In the half 3.2, the seed from the tank 4 arrives at the seed disc 9 via a feed 30 in a receiving section 31 for receiving the seed. At least in the receiving portion 31 is located at the Söchöchern 15 to a negative pressure, which is generated by a negative pressure region of the first half 3.1. Connected to the negative pressure area is a fan motor, which can be controlled by a saw core control device.

Die Sälöcher 15 weisen je nach zu vereinzelndem Saatgut geeignete Durchmesser auf, die insbesondere im Bereich von 0,5 mm bis 3 mm liegen.Depending on the seed to be separated, the seeding holes 15 have suitable diameters which are in particular in the range from 0.5 mm to 3 mm.

Idealerweise nimmt jedes Säloch 15 ein einziges Saatkorn auf, was insbesondere wegen der unterschiedlichen Ausprägung der Saatkörner jedes Saatguts in der Praxis nicht immer zu 100 % funktioniert. Je nach verwendetem Saatgut und abhängig von der Einstellung des Säherzes 3 und der Fahrgeschwindigkeit kommt es vor, dass ein Säloch 15 kein Saatkorn oder sogar mehrere Saatkörner aufnimmt. Dies führt an der entsprechenden Sästelle im Ackerboden dazu, das entweder keine Pflanze entsteht oder zum Beispiel zwei Pflanzen, die nicht ausreichend mit Nährstoffen versorgt werden und daher unterentwickelt bleiben.Ideally, each sowing hole 15 picks up a single seed grain, which does not always work 100% in practice, in particular because of the different severity of the seeds of each seed. Depending on the seed used and depending on the setting of Säherzes 3 and the driving speed, it happens that a seed hole 15 no seed or even picking up multiple seeds. This leads to the corresponding sowing point in the field soil, which either no plant originates or for example two plants, which are not sufficiently supplied with nutrients and therefore remain underdeveloped.

Besonders kritisch ist es jedoch, wenn einzelne Säaggregate einer Einzelkornsämaschine vollständig ausfallen, beispielsweise durch eine Funktionsstörung oder hohen Verschmutzungsgrad.However, it is particularly critical if individual sowing units of a precision seed drill completely fail, for example due to a malfunction or high degree of contamination.

Eine Rührnoppen 19, 19' aufweisende Rührwelle 18, 18' zur Verstärkung der Bewegung des Saatguts im Aufnahmeabschnitt 31 ist bevorzugt im Bereich des Zulaufs 30 und/oder am in Rotationsrichtung R liegenden Beginn des Aufnahmeabschnitts 31 angeordnet.An agitating shaft 18, 18 'having stirring knobs 19, 19' for enhancing the movement of the seed in the receiving section 31 is preferably arranged in the region of the inlet 30 and / or on the beginning of the receiving section 31 in the direction of rotation R.

Der Bereich des Zulaufs 30 ist insbesondere mit einer Füllstandsüberwachung (nicht dargestellt) versehen, um einer zu starken Förderwirkung der Rührwelle 18, 18' entgegen zu wirken. Wenn die Füllstandsüberwachung ein entsprechendes Signal gibt, dass sich im Bereich des Zulaufs 30 kein oder zu wenig Saatgut befindet, wird die Drehzahl der Rührwelle 18, 18' reduziert oder die Rotation der Rührwelle 18, 18' gestoppt.The region of the inlet 30 is provided in particular with a fill level monitoring (not shown) in order to counteract a strong conveying effect of the agitator shaft 18, 18 '. If the filling level monitoring gives a corresponding signal that there is no or too little seed in the region of the inlet 30, the rotational speed of the agitator shaft 18, 18 'is reduced or the rotation of the agitator shaft 18, 18' is stopped.

Ein Abstreifer (nicht dargestellt) zum Abstreifen überschüssigen Saatguts von den Sälöchern 15 ist in Rotationsrichtung R vorzugsweise zwischen der Rührwelle 18, 18' und einer Säherzüberwachungseinrichtung (nicht dargestellt) angeordnet, insbesondere näher an der Rührwelle 18, 18' als an der Säherzüberwachungseinrichtung.A scraper (not shown) for stripping excess seed from the sockets 15 is preferably disposed in the direction of rotation R between the agitator shaft 18, 18 'and a seed heart monitor (not shown), in particular closer to the agitator shaft 18, 18' than to the seed heart monitor.

Figur 2a ist zu entnehmen, dass erfindungsgemäß Rührwellen 18, 18' verschiedener Ausführungen in das Säherz 3 einsetzbar sind. Die Ausführung der unteren Rührwelle 18 weist an ihrem Umfang 33 Rührnoppen 19 auf, die sich in Form und Abmessungen von Rührnoppen 19' der in Figur 2a oben dargestellten Rührwelle 18' unterscheiden. Die vier am Umfang 33 der Rührwelle 18' angeordneten Rührnoppen 19' weisen eine Flügelform auf. Abgesehen von der Zahl, Form und Größe der Rührnoppen 19, 19' und/oder des Durchmessers des die Rührnoppen 19, 19' an seinem Umfang aufweisenden Hohlkörpers sind die Rührwellen 18, 18' bevorzugt identisch. FIG. 2a It can be seen that according to the invention stirrer shafts 18, 18 'of different types in the Säherz 3 are used. The embodiment of the lower agitator shaft 18 has at its periphery 33 stirring knobs 19, which in the form and dimensions of stirring knobs 19 'of in FIG. 2a Distinguish above stirring shaft 18 '. The four on the circumference 33 of the Stirring shaft 18 'arranged stirring knobs 19' have a wing shape. Apart from the number, shape and size of the stirring knobs 19, 19 'and / or the diameter of the stirring knobs 19, 19' at its periphery having hollow body, the stirring shafts 18, 18 'are preferably identical.

So weisen beide Rührwellen 18, 18' in einer optionalen Ausführung an einem antriebsseitigen Ende eine Schnecke 26 auf. Die Schnecke 26 sorgt bei Rotation der Rührwelle 18, 18' für eine Förderung des Saatguts in Richtung der Rührnoppen 19, 19'. Die Rührnoppen 19, 19' sorgen für eine Durchwirbelung des Saatguts im Aufnahmeabschnitt 31.Thus, in an optional embodiment, both agitator shafts 18, 18 'have a worm 26 on a drive-side end. The worm 26 ensures upon rotation of the agitator shaft 18, 18 'for a promotion of the seed in the direction of Rührnoppen 19, 19'. The stirring knobs 19, 19 'ensure a swirling of the seeds in the receiving section 31.

Die Rührwelle 18, 18' ist zumindest teilweise, vorzugsweise überwiegend, als Hohlkörper mit einer Aufnahmeöffnung 27 zur Aufnahme einer Antriebswelle 12 ausgebildet. Die Rührwelle 18, 18' ist mit ihrer Aufnahmeöffnung 27 auf die Antriebswelle 12 axial aufsteckbar und weist lediglich in Steckrichtung einen Freiheitsgrad auf. Die Rührwelle 18, 18' ist somit drehfest mit der Antriebswelle 12 verbunden.The agitator shaft 18, 18 'is at least partially, preferably predominantly, formed as a hollow body with a receiving opening 27 for receiving a drive shaft 12. The agitator shaft 18, 18 'is axially aufsteckbar with its receiving opening 27 on the drive shaft 12 and has only one degree of freedom in the insertion direction. The stirring shaft 18, 18 'is thus rotatably connected to the drive shaft 12.

An einer die Aufnahmeöffnung 27 umgebenden Anschlagsseite 28 schlägt die Rührwelle 18, 18' an einen Anschlagring 32 eines Hohlzylinders zur Aufnahme eines Doppelkugellagers 13 der Antriebswelle 12, insbesondere dichtend, an. Hierdurch wird verhindert, dass Saatgut von dem Aufnahmeabschnitt 31 in einen Antriebsraum eines Antriebs 10 zum Antrieb der Säscheibe 9 gelangt.At a surrounding the receiving opening 27 stop side 28, the stirring shaft 18, 18 'abuts against a stop ring 32 of a hollow cylinder for receiving a double ball bearing 13 of the drive shaft 12, in particular sealingly. This prevents that seed from the receiving portion 31 enters a drive space of a drive 10 for driving the seed disc 9.

Die Antriebswelle 12 verläuft insbesondere radial parallel zur Säscheibe 9 und/oder orthogonal zu einer Antriebswelle des Antriebs 10 der Säscheibe 9. Die Antriebswelle 12 ist insbesondere über ein Kegelradgetriebe 11 mit dem Antrieb 10 gekoppelt, sodass sich beim Betrieb der Säscheibe 9 also bei Rotation der Säscheibe 9, auch die Rührwelle 18, 18' dreht.The drive shaft 12 extends in particular radially parallel to the seed disc 9 and / or orthogonal to a drive shaft of the drive 10 of the seeding disc 9. The drive shaft 12 is coupled in particular via a bevel gear 11 to the drive 10 so that during operation of the seed disc 9 so during rotation of Säscheibe 9, also the stirring shaft 18, 18 'rotates.

Alternativ ist ein eigener Antrieb zum, insbesondere separat steuer- und/oder regelbaren Antrieb der Antriebswelle 12 vorgesehen.Alternatively, a separate drive for, in particular separately controllable and / or controllable drive of the drive shaft 12 is provided.

Am freien Ende der Rührwelle 18, 18' weist diese einen Kopf 20 mit kreiszylinderförmigen Umfang auf, der kongruent zu einer Gehäuseöffnung 16 des Säherzes 3 geformt ist. Der Kopf 20 weist insbesondere ein Spiel gegenüber einer Innenwand 17 der Gehäuseöffnung 16 auf, sodass die Rührwelle 18, 18' durch die Gehäuseöffnung 16 in einer axial zur Antriebswelle 12 verlaufenden Steckrichtung entnommen werden kann.At the free end of the stirring shaft 18, 18 ', this has a head 20 with a circular cylindrical circumference, which is formed congruent to a housing opening 16 of the Säherzes 3. The head 20 has, in particular, a play relative to an inner wall 17 of the housing opening 16, so that the agitator shaft 18, 18 'can be removed through the housing opening 16 in an insertion direction extending axially with respect to the drive shaft 12.

Die Gehäuseöffnung 16 ist mit einem Deckel 22, insbesondere dichtend, verschließbar. Der Deckel 22 fixiert die Rührwelle 18, 18' auf der Antriebswelle 12 mittels mindestens einem, insbesondere ringförmigem, Vorsprung 29. Der Vorsprung 29 liegt in montiertem Zustand an einer, insbesondere tangential zur Säscheibe 9 und/oder radial zur Antriebswelle 12 verlaufenden, Stirnseite 25 der Rührwelle 18, 18' an. Der Deckel 22 stabilisiert somit gleichzeitig die Rotationsbewegung des freien Endes der Rührwelle 18, 18'.The housing opening 16 is closed by a lid 22, in particular sealing. The cover 22 fixes the agitator shaft 18, 18 'on the drive shaft 12 by means of at least one, in particular annular, projection 29. The projection 29 is in the mounted state at one, in particular tangential to the seed disc 9 and / or radially to the drive shaft 12 extending end face 25th the stirring shaft 18, 18 'on. The cover 22 thus simultaneously stabilizes the rotational movement of the free end of the agitator shaft 18, 18 '.

Der Deckel 22 weist weiterhin ein Sichtfenster 23 auf, das eine Sichtöffnung 24 des Säherzes 3 verschließt. Durch die Sichtöffnung 24 und das Sichtfenster 23 erhält man Einblick in den Betrieb des Säherzes 3 im Inneren des Säherzes 3.The lid 22 also has a viewing window 23, which closes a viewing opening 24 of the Säherzes 3. Through the viewing opening 24 and the viewing window 23 gives insight into the operation of the Säherzes 3 inside the Säherzes. 3

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Säaggregatsowing unit
22
Armpoor
33
Säherzseeding heart
3.13.1
Hälftehalf
3.23.2
Hälftehalf
44
Tanktank
4d4d
Deckelcover
4k4k
Kanalchannel
55
Säscharcoulter
66
Laufräderimpellers
77
ScharspitzeScharspitze
88th
Arbeitsraumworking space
99
Säscheibesowing disc
1010
Antriebdrive
1111
Kegelradgetriebebevel gear
1212
Antriebswelledrive shaft
1313
DoppelkugellagerDual ball bearing
1414
Hohlzylinderhollow cylinder
1515
SälöcherSälöcher
1616
Gehäuseöffnunghousing opening
1717
Innenwandinner wall
18, 18'18, 18 '
Rührwelleagitator shaft
19, 19'19, 19 '
RührnoppenRührnoppen
2020
Kopfhead
2121
Stirnseitefront
2222
Deckelcover
2323
Sichtfensterwindow
2424
Sichtöffnungview port
2525
Stirnseitefront
2626
Schneckeslug
2727
Aufnahmeöffnungreceiving opening
2828
Anschlagseitestop side
2929
Vorsprunghead Start
3030
ZulaufIntake
3131
Aufnahmeabschnittreceiving portion
3232
Anschlagringstop ring
3333
Umfangscope
RR
Rotationsrichtungdirection of rotation
FF
Fahrtrichtungdirection of travel

Claims (7)

  1. A seeding heart for a single-grain seeding machine comprising
    - a seeding disc (9) rotatable in a rotational direction (R) with a plurality of seeding holes (15) distributed concentrically with respect to the seeding disc (9) along at least one seeding hole circle and
    - at least one agitator shaft (18, 18') for the movement of the seed, said agitator shaft (18,18') being disposed in a holding section (31) for holding the seed on the seeding holes (15) of the seeding disc (9),
    characterised in that the agitator shaft (18, 18') is constituted replaceable in a modular manner.
  2. The seeding heart according to claim 1. wherein the agitator shaft (18, 18') can be slipped onto a drive shaft (12) which is coupled in particular with a drive (10) of the seeding disc (9), preferably via a bevel gear (11).
  3. The seeding heart according to claim 2, wherein the drive shaft (12) is guided rotatably with a double ball bearing (13) in a hollow cylinder (14) formed in particular in a housing half (3.2) of the seeding heart (3).
  4. The seeding heart according to any one of the preceding claims,
    wherein the agitator shaft (18, 18') can be replaced through a housing opening (16) of the seeding heart (3) disposed in particular lying opposite to the hollow cylinder (14).
  5. The seeding heart according to claim 4, wherein the agitator shaft (18, 18') can be fixed rotatably by means of a cover (22) which in particular can close the housing opening (16), preferably in a sealing manner.
  6. The seeding heart according to any one of the preceding claims,
    wherein the agitator shaft (18, 18') comprises a, in particular circular cylindrical, head (20) constituted form-congruent with an inner wall (17) of a housing opening (16).
  7. A single-grain seeding machine with a seeding heart (3) according to any one of the preceding claims.
EP14166850.9A 2014-05-02 2014-05-02 Single grain meter and single grain seeder Active EP2939511B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
ES14166850.9T ES2598962T3 (en) 2014-05-02 2014-05-02 Dosing unit and single grain seeder machine
HUE14166850A HUE029148T2 (en) 2014-05-02 2014-05-02 Single grain meter and single grain seeder
EP14166850.9A EP2939511B1 (en) 2014-05-02 2014-05-02 Single grain meter and single grain seeder
DK14166850.9T DK2939511T3 (en) 2014-05-02 2014-05-02 Sow-heart and single-grain drill.
PL14166850T PL2939511T3 (en) 2014-05-02 2014-05-02 Single grain meter and single grain seeder
PCT/EP2015/051846 WO2015165598A1 (en) 2014-05-02 2015-01-29 Seeding heart and single-grain seeder
CN201580003185.4A CN105828597B (en) 2014-05-02 2015-01-29 Sowing machine core for seeder
CA2933012A CA2933012C (en) 2014-05-02 2015-01-29 Seeding heart for a single-grain seeding machine
BR112016011967-3A BR112016011967B1 (en) 2014-05-02 2015-01-29 seeding core and single grain seeding machine
US15/035,650 US9901022B2 (en) 2014-05-02 2015-01-29 Seeding heart with a modular agitator shaft for seed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14166850.9A EP2939511B1 (en) 2014-05-02 2014-05-02 Single grain meter and single grain seeder

Publications (2)

Publication Number Publication Date
EP2939511A1 EP2939511A1 (en) 2015-11-04
EP2939511B1 true EP2939511B1 (en) 2016-07-20

Family

ID=50630663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14166850.9A Active EP2939511B1 (en) 2014-05-02 2014-05-02 Single grain meter and single grain seeder

Country Status (10)

Country Link
US (1) US9901022B2 (en)
EP (1) EP2939511B1 (en)
CN (1) CN105828597B (en)
BR (1) BR112016011967B1 (en)
CA (1) CA2933012C (en)
DK (1) DK2939511T3 (en)
ES (1) ES2598962T3 (en)
HU (1) HUE029148T2 (en)
PL (1) PL2939511T3 (en)
WO (1) WO2015165598A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4305942A1 (en) 2022-07-12 2024-01-17 Kverneland Group Soest GmbH Sowing core with stirrer for a sowing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108055902A (en) * 2018-01-26 2018-05-22 河北农业大学 Seed cleaning sheet for wheat seed metering device in agricultural machine
CN110972628B (en) * 2020-01-13 2024-04-26 鄂尔多斯市悍龙园林科技有限公司 Hand propelled single-grain corn hill planter

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Publication number Priority date Publication date Assignee Title
GB1591794A (en) * 1976-10-28 1981-06-24 Rota Spoon Ltd Seed dispensing device
FR2488769B1 (en) * 1980-08-21 1985-06-21 Nodet Gougis SINGLE SEED DISPENSER WITH VACUUM
GB8330850D0 (en) * 1983-11-18 1983-12-29 Hestair Farm Equip Ltd Seed dispensing mechanisms
US4793511A (en) * 1984-03-26 1988-12-27 Deere & Company Seed meter having seed disk aperture cleaning wiper and brush arrangement
CN2070086U (en) * 1990-08-04 1991-01-30 唐永生 Man power wheat rolling and pressing wortex planter
US5784985A (en) * 1996-03-04 1998-07-28 Deere & Company Mechanical seed meter
US6352042B1 (en) * 2000-10-10 2002-03-05 Deere & Company Internal seed knockout assembly
RU2241323C1 (en) * 2003-06-09 2004-12-10 Азово-Черноморская государственная агроинженерная академия Pneumatic seeding unit
JP4389120B2 (en) * 2004-09-13 2009-12-24 井関農機株式会社 Seedling machine wheels
FR2971391B1 (en) * 2011-02-10 2014-02-21 Kuhn Sa DISPENSING HOUSING FOR MONOGRAINE SEMOIR WITH AGITATOR BLADES AND SEEDER USING SUCH A HOUSING

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4305942A1 (en) 2022-07-12 2024-01-17 Kverneland Group Soest GmbH Sowing core with stirrer for a sowing machine

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US20160270287A1 (en) 2016-09-22
ES2598962T3 (en) 2017-01-30
CA2933012C (en) 2020-06-09
PL2939511T3 (en) 2017-01-31
BR112016011967A2 (en) 2018-02-06
DK2939511T3 (en) 2016-10-24
EP2939511A1 (en) 2015-11-04
US9901022B2 (en) 2018-02-27
BR112016011967B1 (en) 2020-07-07
HUE029148T2 (en) 2017-02-28
WO2015165598A1 (en) 2015-11-05
CA2933012A1 (en) 2015-11-05
CN105828597B (en) 2019-05-17
CN105828597A (en) 2016-08-03

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